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@uitrit gieten etmt @time Letters Patent No. 75,109, dated March 3, 1868.

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TO ALL WHOM IT MAY OONCERN:

Be it known that I, CHARLES W. ATKESON, of the city and county of St. Louis, and VStute of Missouri, have invented a new and useful Ventilating-Apparatus 'a-n'd' .I do hereby declare that the following is a full and clear description thereof, reference being had to the accompanying drawing-s, and. tothe letters of' reference marked thereon.` I

This invention relates to an air-duct, leading down into the building or apartment to .be ventilated fromYV the roof, and toa funnel'led head-piece connected with the said duct, tl1e.funne1 being s o constructed as to receive the passing breeze, from whatever quarter it may blow, while a guide within the duct, directed by a weather-cock on top of it, will direct the breeze received in the funnel down into the duet.

"To enable those skilled in the art to make and use my improved Ventilating-apparatus, I will proceed to describe its construction and operation. i

Figure 1 of the drawings is a side elevation of the improvedapparatus. Figure 2 is a vertical sectional central elevation of the same. Figure 3 is a'horizontal section, taken onithe line z y in'fig. 1.

The funnelled head-piece A is `composed of two annular disks', a, connected together by the radial vertical partitions al, the whole togetherfforming a'series of funnels radiating in a horizontal plano from the axis of the cbntral duct B. A cover orroof, consisting of ad lannular disk, a2, is4 placed over the head-piece to prevent rain or snow from lodging in the top part of the head-piece and running down into the duct B. A cylindrical guide, C', open at its bottom, and having an orifice, c, in'one of its sides,of` an area equal to the area ot' the smaller end ofthe funnel, is placed within the upper end ofthe duct Rand made to revolve on its step, C1, by means of theweather-cook C2, which is placed on the upper end of a stem, el, which is attachedtoland extends upwar'dfrorn the topvend of the guide C.' A cap, c3, nttachedto the stem el, turns with it, and covers the oentral orifice in a2, so as to prevent storms from driving-irl',Y at the said orii`rcc. V The weath'crock on top of the guider() is so arranged as to turn the said guide in suohd'a direction as to keep.the `oriiice'e constantly toward thewind. The. action of the wind, then, blowing from whatever quarter it will, will be to enter the funnel directed towardit, and thence pass into the guide C, through tsfdritice c, and thence down through the open bottom-ot` the guide, (the top end of it being ltightly closed,) and thence through the duet B into the apartment,

where it is needed for ventilation purposes. i

It is very evident that the funnel-head A may be of any size most applicable to the purpose for which it isI intended, and' as it is made stationary, it may be made large enough to gatherin its. open-mouthed funnels a large volume o f wind, without the risk of its becoming inoperative by disengagement of its parts. It is equally evident that, should circumstances demand it, two or moresets of the Afunnelsmight be placed one above another; but-.should this be done, there will have to be a guide, C, for each set of funncls, and the uppc'r ones will have to extend down through the central part of the lower onesfarenogh to prevent the current from above from impeding that receivedat the lower fuunels. The lower endsot' the upper guides might terminate just below the orifice c in thelower guide.v C

'Having described my invention, what I clinnis- I 1. The funnel-headA, when combined with the duet B, the guide C, and the weather-coelrCz, substantially as described and'shown. i

2. I claim the funnel-head A, when eonstructed'by means ofthe two disks a and the vertical partitions al, 'the whole combined and arranged as described and set forth.

AIn testimony of -whichinvention, I hereunto setmy hand, this eighthllay of June, A. D. 1867, in presence of f i c. W. A'IKESON.

Witnesses:

M. RAjNDoLPH, J. W. HERTHEL. 

